Missing Marjorie, Phillip has started wetting the bed again. Mum's first love cruises into town, making quite an impression on the townsfolk - except Sarge. Meanwhile, Egg finds himself caught in a bizarre love triangle.
Lockie goes water skiing with Vicki and her parents and assures Vicki he's a good skier. In reality, he's never skied before. However, Lockie feels he has little choice but to pretend to impress Vicki and her parents.
Just when life is finally uncomplicated, Lockie falls for Vicki Streeton all over again... and it's driving him to distraction. John East suggests Lockie create a Board Riders Association to take his mind off girls.
Lockie agrees to attend Curtis' wild party to keep Egg as a friend. However, if Lockie's going to follow through with it and attend, he'll have to lie to his parents. Meanwhile, Phillip and Sarge help Mum overcome her morbid fear of public speaking.
Deciding it's time Lockie learned about puberty, mum hands him her Little Green Book, which makes Lockie wonder how other people around him deal with sex education. Meanwhile Lockie continues to be a target for bullies.
Host Costa Georgiadis and presenters Clarence Slockee and Josh Byrne visit the Northern Territory and Western Australia in a special episode which celebrates the ways in which Indigenous people are connected to the land.
Critique the "sense and nonsense" of the global $100 billion vitamin and supplement industry with Derek Muller in Vitamania. Then test your students' knowledge of the importance of vitamins in our diets, and the history of the business.